myIR account owners and administrators can cancel someone’s web logon access for the account.
Go to 'Manage my profile'
Select the 'I want to...' tab
Select 'Manage additional logons'
This shows you a list of people who have access to the account.
Select the logon you are cancelling access for
Select 'Deactivate access'
The link is on the top right-hand side of the Additional logon screen.
Confirm you want to deactivate the person's access
You’ll get a warning that you’re about to deactivate the person’s access. Select ‘yes’ or ‘no’ to continue.